Fresh leaves come from Ya'an mountains. The picking period is about ten days before and after the valley rain solar term. The first development of one bud and one leaf is the main part, and the second development of one bud and two leaves is the auxiliary part. The jasmine flowers in May in Guangxi are white. According to the four scents and one extraction process, the best time to control the cultivation of flowers, screen flowers and put on flowers is carefully selected. The shape is curly and thin, the pekoe is exposed, the color of the soup is green and yellow after brewing, the bottom of the leaves is even and tender, the taste is rich and sweet, it is a good drink and gift